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June 24th: Store is closed for Quebec National Holiday. Orders placed that day will ship on June 25th.
June 24th: Store is closed for Quebec National Holiday. Orders placed that day will ship on June 25th.
Celestron AC Adapter – 5 Amp

Celestron AC Adapter – 5 Amp

by Celestron
SKU CEL-18780
$92.95 - $92.95
$92.95
$92.95 - $92.95
$92.95
Price Match Policy!
  • Powers Celestron's largest mounts with 5 amps (5000 milliamps) of current
  • Provides a stable 12VDC output for consistent performance
  • Threaded barrel connector prevents accidental power loss
  • Compatible with CGX, CGEM, CGE Pro, and CPC Deluxe HD series mounts
  • Lightweight switching-type adapter design
1 in stock
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  • Description
  • FAQ
  • Specifications
  • Warranty

  • Celestron AC Adapter – 5 Amp

    The Celestron AC Adapter delivers a continuous 5 amps (5000 milliamps) of 12VDC power, ensuring your high-payload Celestron mount operates without interruption from any standard AC outlet. Its 2.1mm inside-positive barrel connector threads directly onto the mount's power jack, creating a secure connection that won't disconnect if the cable is pulled during an imaging session.

    5 Amps of Stable 12V Power for Demanding Setups

    When running a heavy imaging rig on a mount like a CGX-L or CGE Pro, insufficient current can cause tracking errors and failed slews. This adapter supplies a full 5 amps at 12VDC, providing more than enough electrical headroom to drive the motors smoothly, even when the telescope is loaded with cameras, filter wheels, and autoguiders.

    Unlike heavier transformer-style adapters, this unit uses a modern switching-type design. This provides clean, regulated power while remaining lightweight and compact, making it an easy addition to your field kit for nights when AC power is available.

    Threaded 2.1mm Connector for Secure, Uninterrupted Imaging

    A loose power cable is one of the most common and frustrating ways to ruin a long exposure. The Celestron 5 Amp AC Adapter eliminates this risk with a purpose-built threaded barrel connector that has a 2.1mm inside diameter and a 5.5mm outside diameter. It screws directly onto the power input jack of compatible mounts, forming a rigid, reliable connection that cannot be accidentally unplugged.

    This physical lock is a critical feature for any serious imager, especially those operating their setups remotely. It guarantees that a simple snag or trip over a cable won't result in a powered-down mount and a lost night of data.

    Broad Compatibility with Celestron's High-Payload Mounts

    This adapter is the official power solution designed specifically for Celestron's flagship equatorial and fork-mounted telescopes. It is fully compatible with the entire range of modern, heavy-duty mounts that share the threaded power connector.

    • Compatible Mounts: CGEM, CGEM II, CGEM DX, CGE, CGE PRO, CPC Deluxe HD, CGX, and CGX-L.
    • Connector Specs: The 2.1mm (inside) by 5.5mm (outside) barrel plug with a 10mm - 15mm jack length is engineered to mate perfectly with these specific mounts.

  • Why does the Celestron 5 Amp Adapter have a threaded connector?

    The threaded connector is a key safety feature. It screws onto the mount's power port to prevent the cable from being accidentally pulled out, which would cause the mount to lose power and alignment during an observation or imaging session. This is a common point of failure for adapters with simple push-in friction-fit plugs.

    Is 5 amps necessary for my Celestron CGEM II mount?

    While a mount may draw less current during normal tracking, slewing with a heavy payload requires a significant power surge. The 5 amp (5000 milliamp) capacity ensures the mount's motors receive enough current under peak load, preventing stalls, sluggish performance, and tracking errors that can occur with under-powered adapters.

    Can I use this Celestron adapter with a mount that isn't on the compatible list?

    It is not recommended. This adapter is designed specifically for the voltage, current, and physical connection requirements of mounts like the CGX and CGE Pro. You must verify that the other device requires a 12VDC, 5 amp supply with a 2.1mm inside-positive barrel plug and that the threaded connection is compatible.

    Will this adapter work for my Celestron CPC Deluxe HD at a star party?

    Yes, provided you have access to an AC outlet. The Celestron 5 Amp AC Adapter is an ideal power source for your CPC Deluxe HD when using a portable AC power station or mains power at an event, ensuring you have consistent power all night without relying on a battery that could run down.

    What is the advantage of a "switching-type" adapter like this Celestron model?

    A switching-type adapter is more efficient and significantly lighter than older transformer-based designs. It converts AC to DC power with less energy loss as heat and provides a more stable, regulated 12VDC output, which is better for sensitive electronics like GoTo telescope mounts.

    My CGX-L mount seems to work with a 3-amp adapter. Why should I upgrade to the Celestron 5 Amp adapter?

    A 3-amp adapter may be sufficient for a lightly loaded CGX-L, but it operates at the edge of the mount's power requirements. When you add a heavy OTA, guide scope, and camera, the current draw during a fast slew can exceed 3 amps. The 5 amp adapter provides the necessary headroom to prevent voltage drops and ensure reliable, precise motor control under all load conditions.

  • AC Adapter Output 12VDC
    Current Output 5 amps (5000 milliamps)
    Tip Polarity Inside tip positive
    Inside Diameter 2.1mm (.08")
    Outside Diameter 5.5mm (.21")
    Jack Length 10mm - 15mm (.39" - .59")
    Compatible Telescopes CGEM, CGEM II, CGEM DX, CGE, CGE PRO, CPC Deluxe HD, CGX, CGX-L
  • Celestron 2-Year Warranty